molds

No not the ones that grow in the break room refrig.,althought I have
considered them as a source for a control for our GMSs. I am referring to
the embedding variety. I have my prefrance, but am trying to convience some
one that one type is better than the other. I believe both have a place in
histology if the person embedding knows the short falls of each type. I am
not referring to the size of the molds as much as I am in the material they
are made from, so group which is better plastic or metal molds reasons for
your choice are manditory for this quiz.